I am getting a lot of air in my indirect central heating. The top floor radiators seem to be getting air in them daily. We have been in the house six years and though the system is not exactly a model of installation and has had some air in in the past this is now getting rediculous. Could the pump be causing this or what else?
Sorry to sound so clueless i am a fairly (i hope) competent DIYer but I'm a bit puzzled - and fed up of bleeding radiators (in both senses)
cheers Ged